Chrysanthemum plant named &#39;dlfguam10&#39;

ABSTRACT

A new and distinct cultivar of  Chrysanthemum  plant named ‘DLFGUAM10’, characterized by its upright plant habit; uniform growth habit; vigorous growth habit and rapid growth rate; durable and robust dark green-colored leaves; strong upright flowering stems; decorative-type inflorescences with white and bright yellow green-colored tubular ray florets; relatively tolerant to high and low production temperatures; and good postproduction longevity.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Title: Varieties of Chrysanthemum Plants

Inventor/Applicant: Arie Gerard Post

Filed: Jun. 7, 2021

Ser. No. 63/197,948

Inventor/Applicant hereby claims the priority benefit of thisprovisional U.S. Patent Application.

Botanical designation: Chrysanthemum X morifolium.

Cultivar denomination: ‘DLFGUAM10’.

STATEMENT REGARDING PRIOR DISCLOSURES BY INVENTOR/APPLICANT & ASSIGNEE

A Columbian Plant Breeder's Rights application for the instant plant wasfiled by the Assignee, Deliflor Royalties B.V. of Maasdijk, TheNetherlands on Aug. 31, 2021, application number A212825. Foreignpriority is not claimed to this application.

The Inventor/Applicant and Assignee assert that no publications noradvertisements relating to sales, offers for sale or public distributionoccurred more than one year prior to the effective filing date of thisapplication. Any information about the claimed plant would have beenobtained from a direct or indirect disclosure from theInventor/Applicant and/or the Assignee. Inventor/Applicant and Assigneeclaim a prior art exception under 35 U.S.C. 102(b)(1) for disclosureand/or sales prior to the filing date but less than one year prior tothe effective filing date.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar ofChrysanthemum plant, botanically known as Chrysanthemum x morifolium,typically grown as a cut flower Chrysanthemum and hereinafter referredto by the name ‘DLFGUAM10’.

The new Chrysanthemum plant is a product of a planned breeding programconducted by the Inventor in Maasdijk, The Netherlands. The objective ofthe breeding program is to create new cut flower Chrysanthemum plantswith unique and attractive inflorescences.

The new Chrysanthemum plant originated from a cross-pollination inApril, 2017 of a proprietary selection of Chrysanthemum x morifoliumidentified as code number KR 11474, not patented, as the female, orseed, parent with a proprietary selection of Chrysanthemum x morifoliumidentified as code number KR 10131, not patented, as the male, orpollen, parent. The new Chrysanthemum plant was discovered and selectedas a single flowering plant from within the progeny of the statedcross-pollination in a controlled greenhouse environment in Maasdijk,The Netherlands in February, 2018.

Asexual reproduction of the new Chrysanthemum plant by vegetativeterminal cuttings in a controlled greenhouse environment in Maasdijk,The Netherlands since February, 2018 has shown that the unique featuresof this new Chrysanthemum plant are stable and reproduced true to typein successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘DLFGUAM10’. These characteristics incombination distinguish ‘DLFGUAM10’ as a new and distinct Chrysanthemumplant:

-   -   1. Upright plant habit; uniform growth habit.    -   2. Vigorous growth habit and rapid growth rate.    -   3. Durable and robust dark green-colored leaves.    -   4. Strong upright flowering stems.    -   5. Decorative-type inflorescences with white and bright yellow        green-colored tubular ray florets.    -   6. Relatively tolerant to high and low production temperatures.    -   7. Good postproduction longevity.

Plants of the new Chrysanthemum differ primarily from plants of thefemale parent selection in the following characteristics:

-   -   1 Leaves of plants of the new Chrysanthemum are not as glossy as        leaves of plants of the female parent selection.    -   2. Inflorescences of plants of the new Chrysanthemum are        decorative type whereas inflorescences of plants of the female        parent selection are anemone types.

Plants of the new Chrysanthemum differ primarily from plants of the maleparent selection in the following characteristics:

-   -   1. Leaf sinuses of plants of the new Chrysanthemum are deeper        than leaf sinuses of plants of the male parent selection.    -   2. Ray florets of plants of the new Chrysanthemum are white and        bright yellow green in color whereas ray florets of plants of        the male parent selection are yellow green in color.

Plants of the new Chrysanthemum can be compared to plants ofChrysanthemum X morifolium ‘DLFCOCO5’, not patented. In side-by-sidecomparisons, plants of the new Chrysanthemum differ primarily fromplants of ‘DLFCOCO5’ in leaf color as plants of the new Chrysanthemumhave darker green-colored leaves than plants of ‘DLFCOCO5’. In addition,tubular ray florets of plants of the new Chrysanthemum are triangular incross-section whereas tubular ray florets of plants of ‘DLFCOCO5’ areflattened in cross-section.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of thenew Chrysanthemum plant showing the colors as true as it is reasonablypossible to obtain in colored reproductions of this type.

The photograph on the first sheet (FIG. 1 ) is a side perspective viewof a typical flowering stein of ‘DLFGUAM10’ grown as a spray-type cutflower.

The photograph on the second sheet (FIG. 2 ) is a close-up view of upper(left) and lower (right) surfaces of typical inflorescences and typicalleaves of ‘DLFGUAM10’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations andmeasurements describe plants grown during the spring in ground beds in aglass-covered greenhouse in Maasdijk, The Netherlands and under culturalpractices typical of commercial cut Chrysanthemum production. Plantswere initially given long day/short night treatments followed by shortday/long night treatments to induce flower initiation and development.During the production of the plants, day temperatures ranged from 18° C.to 25° C., night temperatures ranged from 20° C. to 22° C. and lightlevels averaged 7 klux. Plants were grown as single-stem spray-typeplants and were ten weeks old when the photographs and the descriptionwere taken. In the following description, color references are made toThe Royal Horticultural Society Colour Chart, 2015 Edition, except wheregeneral terms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum X morifolium ‘DLFGUAM10’.-   Parentage:    -   -   Female, or seed, parent.—Proprietary selection of            Chrysanthemum x morifolium identified as code number KR            11474, not patented.        -   Male, or pollen, parent.—Proprietary selection of            Chrysanthemum x morifolium identified as code number KR            10131, not patented.-   Propagation:    -   -   Type.—Terminal vegetative cuttings.        -   Time to initiate roots, summer.—About four days at            temperatures about 20° C.        -   Time to initiate roots, winter.—About six days at            temperatures about 20° C.        -   Time to produce a rooted young plant, summer.—About 13 days            at temperatures about 20° C.        -   Time to produce a rooted young plant, winter.—About 15 days            at temperatures about 20° C.        -   Root description.—Fine, fibrous; typically creamy white in            color, actual color of the roots is dependent on substrate            composition, water quality, fertilizers, substrate            temperature and physiological age of roots.        -   Rooting habit.—Freely branching, medium density.-   Plant description:    -   -   Plant and growth habit.—Herbaceous decorative-type cut            flower that is typically grown as a single stem spray-type;            upright plant habit; vigorous growth habit and rapid growth            rate.        -   Plant height, soil level to top of foliar plane.—About 82.1            cm.        -   Plant height, soil level to top of inflorescence            plane.—About 87.1 cm.        -   Plant (spray) diameter.—About 19.9 cm.        -   Flowering stem length.—About 80.6 cm.        -   Flowering stem diameter.—About 6 mm.        -   Flowering stem internode length.—About 2.9 cm.        -   Flowering stem strength.—Strong.        -   Flowering stem aspect.—Erect.        -   Flowering stem texture and luster.—Moderately pubescent;            slightly glossy.        -   Flowering stem color, developing.—Close to 144A.        -   Flowering stem color, developed.—Close to 146B; at the            ridges, close to 148A.        -   Leaf description.—Arrangement: Alternate; simple. Length:            About 11.7 cm. Width: About 6.9 cm. Shape, in overall            outline: Broadly elliptic to broadly oblong. Apex:            Apiculate. Base: Attenuate. Margin: Palmately lobed,            coarsely serrate; sinuses parallel to slightly divergent and            medium in depth; not undulate. Texture and luster, upper            surface: Sparsely to moderately pubescent, not rugose;            slightly velvety; slightly glossy. Texture and luster, lower            surface: Moderately pubescent, not rugose; slightly velvety;            slightly glossy. Venation pattern: Pinnate. Color:            Developing leaves, upper surface: Close to NN137A.            Developing leaves, lower surface: Close to 147B. Fully            developed leaves, upper surface: Close to a blend of NN137A            and 147A; venation, close to 146B. Fully developed leaves,            lower surface: Close to 147B; venation, close to 146C.            Petioles: Length: About 1.8 cm. Diameter: About 2.5 mm by            4 mm. Strength: Moderately strong. Texture and luster, upper            and lower surfaces: Moderately to densely pubescent;            moderately glossy. Color, upper surface: Close to 146B;            edges, close to NN137B. Color, lower surface: Close to 146D;            edges, close to 147B. Stipules: Quantity and appearance: Two            leafy stipules, opposite, at the petiole attachment to the            stem. Length: About 7.5 mm. Width: About 1.2 cm. Shape:            Reniform; apex, apiculate to acute; base, broadly cuneate;            margins, entire. Texture and luster, upper surface: Sparsely            to moderately pubescent; slightly glossy. Texture and            luster, lower surface: Moderately pubescent; slightly            glossy. Color, upper surface: Close to a blend of NN137A and            147A. Color, lower surface: Close to 147B.-   Inflorescence description:    -   -   Appearance.—Decorative-type inflorescence form with            tubular-shaped ray florets and tubular disc florets;            inflorescences, rotate and flattened in overall shape;            inflorescences borne perpendicular to peduncles and face            upright; ray and disc florets develop acropetally on a            capitulum.        -   Fragrance.—Faintly fragrant; typical of Chrysanthemums.        -   Flowering response.—Under natural conditions, plant flower            in the autumn/winter in the Northern Hemisphere; at other            times of the year, inflorescence initiation and development            can be induced under short day/long night conditions (at            least 13.5 hours of darkness); uniform flowering habit and            short response time, plants exposed to two weeks of long            day/short night conditions after planting followed by            photoinductive short day/long night conditions flower about            54 days later when grown as a spray-type.        -   Postproduction longevity.—Good postproduction longevity;            after a seven-day storage period, cut flowers will maintain            good color and substance for about two weeks in an interior            environment; inflorescences persistent.        -   Quantity of inflorescences.—Typically grown as a spray-type,            about 15 inflorescences (varying between 10 and 18) develop            per flowering stem.        -   Inflorescence size.—Diameter: About 6.5 cm. Depth (height):            About 2.5 cm. Disc diameter: About 2 mm; inconspicuous.        -   Receptacles.—Height: About 5 mm. Diameter: About 7 mm.            Shape: Flattened globular. Color: Close to 145A and 145C.        -   Inflorescence buds.—Height: About 9 mm. Diameter: About            1.6 cm. Shape: Roughly spherical. Texture and luster:            Moderately pubescent; slightly glossy. Color: Developing            involucral bracts, close to 137C and 145B; developing ray            florets, close to between 144A and 145A.        -   Ray florets.—Quantity and arrangement: About 280 arranged in            about nine whorls. Length: About 2.7 cm, varying between 0.7            cm and 3.7 cm. Width: About 3 mm, varying between 1 mm and            4 mm. Shape: Tubular; triangular in cross-section. Apex:            Obtuse to minutely praemorse. Base: Fused. Margin: Free            part, entire; not undulate. Aspect: About 32.5° from            vertical, varying from erect to about 65° from vertical.            Texture and luster, upper surface: Smooth, glabrous;            slightly velvety; matte. Texture and luster, lower surface:            Smooth, glabrous; slightly velvety; slightly glossy. Color:            When opening, upper and lower surfaces: Close to 145D;            towards the base, close to 145B; towards the apex, close to            149C. Fully opened, upper surface: Close to NN155D; towards            the base, close to 144D; venation, similar to lamina colors;            color does not change with subsequent development. Fully            opened, lower surface: Close to NN155D; towards the base,            close to 144D; apex tinged with close to 145C; venation,            similar to lamina colors; color does not change with            subsequent development.        -   Disc florets.—Quantity and arrangement: About twelve            randomly arranged at the center of the receptacle; disc            florets typically do not fully develop. Length: About 5 mm.            Diameter: About 1 mm. Shape: Tubular. Apex: Obtuse. Margin,            free-part: Entire. Texture and luster, inner and outer            surfaces: Smooth, glabrous; glossy. Color, when opening:            Towards the apex, close to 144B; mid-section and towards the            base, close to 157A. Color, fully opened: Towards the apex,            close to 144A; mid-section and towards the base, close to            157D.        -   Involucral bracts.—Quantity and arrangement: About 30            arranged in about three whorls. Length: About 8 mm. Width:            About 3 mm. Shape: Oblong to ovate. Apex: Bluntly acute.            Base: Cuneate. Margin: Entire. Texture and luster, upper            surface: Smooth, glabrous; glossy. Texture and luster, lower            surface: Moderately pubescent; matte. Color, upper and lower            surfaces: Close to 137B; lateral margins, translucent and            close to 196D and apical margins tinged with close to N199A.        -   Peduncles.—Length: About 4.4 cm. Diameter: About 3 mm.            Strength: Strong. Aspect: Upright. Texture and luster:            Densely pubescent; slightly glossy. Color: Close to 137B; at            the ridges, close to 138A.        -   Reproductive organs.—Androecium: To date, stamen development            has not been observed on plants of the new Chrysanthemum.            Gynoecium: Present only on ray florets as disc florets do            not fully develop. Quantity: One per floret. Pistil length:            About 7 mm. Style length: About 6.25 mm. Style color: Close            to 144C. Stigma diameter: About 0.75 mm. Stigma shape:            Cleft, decurrent. Stigma color: Close to 154A. Ovary color:            Close to 157A.        -   Seeds and fruits.—To date, seed and fruit development have            not been observed on plants of the new Chrysanthemum.-   Pathogen & pest resistance: To date, plants of the new Chrysanthemum    have not been observed to be resistant to pathogens and pests common    to Chrysanthemum plants grown under commercial conditions.-   Temperature tolerance: Plants of the new Chrysanthemum have been    observed to tolerate temperatures ranging from about −12° C. to    35° C. and to be suitable for USDA Hardiness Zones 8 to 10.

It is claimed:
 1. A new and distinct Chrysanthemum plant named‘DLFGUAM10’ as illustrated and described.